<!doctype html>
<title>Hello from Flask</title>
{% if name %}
  <h1>Hello {{ name }}!</h1>
{% else %}
  <h1>Hello, World!</h1>
{% endif %}

{% if name == 'ustc' %}
  <img src="https://www.ustc.edu.cn/_upload/tpl/00/76/118/template118/res/logo.svg"  alt="USTC" />
{% endif %}
